MathematicsA closed tank has internal size of  . It needs to be lined with waterproofing cement on all its internal sides. At the rate of Rs.250 per   , the total cost of lining will be Rs.

A closed tank has internal size of  . It needs to be lined with waterproofing cement on all its internal sides. At the rate of Rs.250 per   , the total cost of lining will be Rs.


  1. A
     237,500
  2. B
     325,000
  3. C
     400,000
  4. D
     475,000 

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    Solution:

    A closed tank has an internal size of .It needs to be lined with waterproofing cement on all its internal sides.
    (l) = 10m
    (b) = 15m
    (h) = 25m
    So total area of cuboid is given by
    As rate of lining is given as Rs. 250250  per So total cost of lining as total area to be lined it =1300
    We have  total lining cost would be 325000 rupees.
    So, option 2 is correct.
     
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